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authorRussell King <rmk+kernel@arm.linux.org.uk>2009-10-25 06:40:02 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-12-01 13:20:07 -0500
commit2f0b192633f1fbf253b21c90938733491549edae (patch)
treea429eaf88e591ea9674075ac6389e9a751da9806 /arch/arm/mm/flush.c
parent29e553631b2a0d4eebd23db630572e1027a9967a (diff)
ARM: Avoid duplicated implementation for VIVT cache flushing
We had two copies of the wrapper code for VIVT cache flushing - one in asm/cacheflush.h and one in arch/arm/mm/flush.c. Reduce this down to one common copy. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm/flush.c')
-rw-r--r--arch/arm/mm/flush.c17
1 files changed, 4 insertions, 13 deletions
diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c
index 7f294f307c83..a480f161a4bb 100644
--- a/arch/arm/mm/flush.c
+++ b/arch/arm/mm/flush.c
@@ -41,8 +41,7 @@ static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr)
41void flush_cache_mm(struct mm_struct *mm) 41void flush_cache_mm(struct mm_struct *mm)
42{ 42{
43 if (cache_is_vivt()) { 43 if (cache_is_vivt()) {
44 if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(mm))) 44 vivt_flush_cache_mm(mm);
45 __cpuc_flush_user_all();
46 return; 45 return;
47 } 46 }
48 47
@@ -59,9 +58,7 @@ void flush_cache_mm(struct mm_struct *mm)
59void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) 58void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end)
60{ 59{
61 if (cache_is_vivt()) { 60 if (cache_is_vivt()) {
62 if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) 61 vivt_flush_cache_range(vma, start, end);
63 __cpuc_flush_user_range(start & PAGE_MASK, PAGE_ALIGN(end),
64 vma->vm_flags);
65 return; 62 return;
66 } 63 }
67 64
@@ -78,10 +75,7 @@ void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned
78void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsigned long pfn) 75void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsigned long pfn)
79{ 76{
80 if (cache_is_vivt()) { 77 if (cache_is_vivt()) {
81 if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) { 78 vivt_flush_cache_page(vma, user_addr, pfn);
82 unsigned long addr = user_addr & PAGE_MASK;
83 __cpuc_flush_user_range(addr, addr + PAGE_SIZE, vma->vm_flags);
84 }
85 return; 79 return;
86 } 80 }
87 81
@@ -94,10 +88,7 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
94 unsigned long len, int write) 88 unsigned long len, int write)
95{ 89{
96 if (cache_is_vivt()) { 90 if (cache_is_vivt()) {
97 if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) { 91 vivt_flush_ptrace_access(vma, page, uaddr, kaddr, len, write);
98 unsigned long addr = (unsigned long)kaddr;
99 __cpuc_coherent_kern_range(addr, addr + len);
100 }
101 return; 92 return;
102 } 93 }
103 94